Electricians' operating and testing manual; (1910)
Horstmann, Henry C. [from old catalog], Tousley, Victor Hugo, 1875- [from old catalog] joint author · Chicago, F. H. Drake & co · leaf 130
rce it into synchronism.If they are operated by separate steam engines, thepiston strokes of the engines should be synchronized.Referring to Figure 85, it can be seen that the enginereceives nearly if not all of its power during the timethat the crank pin is moving from 1 to 2 and from 3 to4.… … Figure 85 perceptible to the eye, they are sufficiently great tocause very damaging cross currents to circulate be-tween the dynamos. There are some specially designed machines thatdo not require such close synchronization. Such ma-chines are provided for operaiion in connection withgas engines.…
Electrical engineering · Electric testing
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.